/* Netstellar - лендінг. Бренд: brand/БРЕНД.md (warm-grey dark, один акцент). */
:root{
  --bg:#262624; --bg-elevated:#30302e; --bg-panel:#1f1e1d;
  --bg-hover:#3a3a37; --border:#383834; --border-strong:#4a4a44;
  --fg:#f5f4ee; --fg-dim:#c4c2b8; --fg-muted:#9a988d;
  --accent:#a8c88c; --accent-hover:#94bb72; --accent-fg:#1f1e1d; --accent-2:#c4dcab;
  --bg-active:#46453f; --red:#e08093;
  --font-ui:"Golos Text",ui-sans-serif,-apple-system,"SF Pro Text","Segoe UI",system-ui,sans-serif;
  --font-serif:"Source Serif 4",Georgia,ui-serif,serif;
  --font-mono:"JetBrains Mono","SF Mono",ui-monospace,Menlo,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
[hidden]{display:none !important}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-ui);font-size:16px;line-height:1.6;letter-spacing:-.01em;
  color:var(--fg);background:var(--bg);-webkit-font-smoothing:antialiased;
}
a{color:var(--accent-2);text-decoration:none}
.mono{font-family:var(--font-mono)}
.tiny{font-size:12px;color:var(--fg-muted)}
.small{font-size:13.5px}
.dim{color:var(--fg-dim)}
/* щільний інтерліньяж заголовків; balance/pretty - проти висячих слів */
h1{font-weight:600;line-height:1.04;letter-spacing:-.02em;text-wrap:balance}
h2{font-weight:600;line-height:1.12;letter-spacing:-.02em;text-wrap:balance}
h3{font-weight:600;line-height:1.25;letter-spacing:-.01em;text-wrap:balance}
p{text-wrap:pretty}
::selection{background:rgba(168,200,140,.35)}
::-webkit-scrollbar{width:10px}
::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:5px}

/* reveal-анімації (GSAP керує; без JS все видиме) */
[data-reveal]{opacity:1;transform:none}
.js [data-reveal]{opacity:0;transform:translateY(26px)}

/* ── NAV ── */
.nav{
  position:fixed;inset:0 0 auto 0;z-index:50;display:flex;align-items:center;gap:26px;
  padding:14px clamp(18px,4vw,44px);transition:background .25s,border-color .25s;
  border-bottom:1px solid transparent;
}
.nav.scrolled{background:rgba(31,30,29,.86);backdrop-filter:blur(12px);border-bottom-color:var(--border)}
.brand{display:flex;align-items:center;gap:10px;font-weight:600;font-size:16.5px;color:var(--fg)}
.brand img{display:block}
.nav-links{display:flex;gap:22px;margin-left:12px}
.nav-links a{font-size:13.5px;color:var(--fg-muted);transition:color .15s}
.nav-links a:hover{color:var(--fg)}
.nav > .btn{margin-left:auto}
@media(max-width:760px){
  .nav{flex-wrap:wrap;gap:10px 16px}
  .nav-links{order:3;width:100%;margin-left:0;gap:16px;overflow-x:auto;padding-bottom:2px}
  .nav-links a{white-space:nowrap;font-size:13px}
}

/* ── КНОПКИ ── */
/* font-family/cursor обов'язкові: <button> не наслідує шрифт від body (UA-стиль сильніший),
   тому <a class="btn"> і <button class="btn"> інакше рендеряться різними гарнітурами. */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-ui);font-size:14px;font-weight:500;cursor:pointer;
  padding:11px 22px;border-radius:9px;border:1px solid var(--border-strong);
  color:var(--fg-dim);transition:all .16s;
}
.btn:focus-visible,.foot-link:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.btn:hover{color:var(--fg);border-color:var(--fg-muted);background:var(--bg-hover)}
.btn-primary{background:var(--accent);border-color:var(--accent);color:var(--accent-fg);font-weight:600}
.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover);color:var(--accent-fg)}
.btn-ghost{background:transparent}

/* ── HERO ── */
.hero{position:relative;min-height:100svh;display:flex;align-items:center;overflow:hidden}
#stars{position:absolute;inset:0;width:100%;height:100%;display:block}
.hero-in{
  position:relative;z-index:2;width:100%;max-width:1060px;margin:0 auto;
  padding:120px clamp(18px,4vw,44px) 90px;text-align:center;
}
.eyebrow{font-size:11.5px;letter-spacing:.22em;color:var(--accent-2);margin-bottom:22px}
.hero h1{
  font-size:clamp(34px,7.2vw,86px);margin-bottom:26px;
}
.hero h1 em{font-family:var(--font-serif);font-style:italic;color:var(--accent);letter-spacing:-.01em}
.hero-sub{
  font-size:clamp(16px,1.6vw,19px);color:var(--fg-dim);max-width:640px;margin:0 auto 34px;
}
.hero-cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* міні-чат у hero */
.hero-chat{
  max-width:520px;margin:52px auto 0;text-align:left;background:var(--bg-panel);
  border:1px solid var(--border);border-radius:14px;padding:16px 18px;
  box-shadow:0 24px 60px -30px rgba(0,0,0,.9);
}
.hc-msg{font-size:13.5px;line-height:1.55}
.hc-user{
  border:1px solid var(--border-strong);border-left:3px solid var(--accent);
  background:var(--bg-elevated);border-radius:8px;padding:9px 12px;min-height:38px;
}
.caret{display:inline-block;width:7px;height:15px;background:var(--accent);margin-left:2px;
  vertical-align:-2px;animation:caret 1s steps(1) infinite}
@keyframes caret{50%{opacity:0}}
.hc-ai{color:var(--fg-dim);padding:11px 3px 2px}
.hc-status{display:flex;align-items:center;gap:8px;font-size:11px;color:var(--fg-muted);padding:10px 3px 2px}
.hc-status .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);animation:pulse 1.1s ease infinite}
@keyframes pulse{50%{opacity:.25}}

/* ── СЕКЦІЇ ── */
.section{padding:110px 0}
.wrap{max-width:1120px;margin:0 auto;padding:0 clamp(18px,4vw,44px)}
.wrap-narrow{max-width:760px}
.section h2{font-size:clamp(28px,3.6vw,44px);margin:14px 0 46px}
.section .eyebrow{margin-bottom:0}

/* кроки */
.steps3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:860px){.steps3{grid-template-columns:1fr}}
.step3{
  background:var(--bg-panel);border:1px solid var(--border);border-radius:14px;
  padding:26px 24px;transition:border-color .2s, transform .2s;
}
.step3:hover{border-color:var(--border-strong);transform:translateY(-3px)}
.step3-num{font-size:12px;color:var(--accent);letter-spacing:.14em;margin-bottom:14px}
.step3 h3{font-size:18px;margin-bottom:10px}
.step3 p{font-size:14px;color:var(--fg-dim)}

/* демо студії */
.section-demo{background:var(--bg-panel);border-block:1px solid var(--border);padding:88px 0 96px}
.section-demo h2{max-width:720px}
.studio-mock{
  border:1px solid var(--border-strong);border-radius:14px;overflow:hidden;
  background:var(--bg);box-shadow:0 40px 90px -40px rgba(0,0,0,.8);
}
.sm-top{display:flex;align-items:center;gap:16px;padding:9px 14px;background:var(--bg-panel);border-bottom:1px solid var(--border)}
.sm-logo{display:flex;align-items:center;gap:7px;font-size:12px;font-weight:600}
.sm-tabs{display:flex;gap:2px;padding:2px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:7px}
.sm-tabs i{font-style:normal;font-size:10.5px;padding:3px 9px;border-radius:5px;color:var(--fg-muted)}
.sm-tabs i.on{background:var(--bg-active,#46453f);color:var(--fg)}
.sm-body{display:grid;grid-template-columns:280px 1fr;min-height:340px}
@media(max-width:760px){.sm-body{grid-template-columns:1fr}}
.sm-chat{border-right:1px solid var(--border);padding:14px;display:flex;flex-direction:column;gap:10px;background:var(--bg-panel)}
.sm-who{display:flex;gap:2px;padding:2px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:7px;align-self:flex-start}
.sm-who i{font-style:normal;font-size:10.5px;padding:3px 9px;border-radius:5px;color:var(--fg-muted)}
.sm-who i.on{background:var(--bg-active);color:var(--fg)}
.sm-user{border:1px solid var(--border-strong);border-left:3px solid var(--accent);background:var(--bg-elevated);
  border-radius:8px;padding:8px 10px;font-size:11.5px;line-height:1.5}
.sm-ai{font-size:11.5px;color:var(--fg-dim);line-height:1.5}
.sm-input{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:8px;
  background:var(--bg-elevated);border:1px solid var(--border-strong);border-radius:9px;padding:8px 10px}
.sm-input span{font-size:11px;color:var(--fg-muted)}
.sm-input i{font-style:normal;width:22px;height:22px;border-radius:6px;background:var(--accent);color:var(--accent-fg);
  display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700}
.sm-site{display:flex;flex-direction:column}
.sm-bar{display:flex;align-items:center;gap:8px;padding:8px 12px;border-bottom:1px solid var(--border)}
.sm-bar i,.sm-bar b,.sm-bar em{font-style:normal;font-weight:500;font-size:10.5px;padding:4px 10px;border-radius:6px;
  border:1px solid var(--border);color:var(--fg-muted)}
.sm-bar i.on{background:var(--bg-active,#46453f);color:var(--fg);border-color:var(--border-strong)}
.sm-bar em{margin-left:auto;background:var(--accent);color:var(--accent-fg);border-color:var(--accent);font-weight:600}
.sm-page{flex:1;margin:14px;border-radius:8px;background:#f5f2ea;display:flex;flex-direction:column;overflow:hidden}
.smp-nav{height:26px;background:#fff;border-bottom:1px solid #e5e0d2}
.smp-hero{flex:1;padding:22px;display:flex;flex-direction:column;gap:9px;justify-content:center}
.smp-t{width:52%;height:16px;border-radius:4px;background:#20303f}
.smp-l{width:70%;height:8px;border-radius:4px;background:#cfc9b8}
.smp-l.short{width:44%}
.smp-btn{width:110px;height:24px;border-radius:12px;background:#2f80c4;margin-top:8px}
.smp-foot{padding:10px 22px;background:#20303f;color:#f5f2ea;font-size:10px;opacity:0;transform:translateY(8px)}
.smp-foot.show{opacity:1;transform:none;transition:all .5s ease}
.demo-note{max-width:640px;margin:26px auto 0;text-align:center;color:var(--fg-dim);font-size:14.5px}

/* можливості */
.grid6{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:960px){.grid6{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.grid6{grid-template-columns:1fr}}
.feat{border:1px solid var(--border);border-radius:13px;padding:24px 22px;background:var(--bg-panel);
  transition:border-color .2s}
.feat:hover{border-color:var(--accent)}
.feat h3{font-size:16px;margin-bottom:8px}
.feat p{font-size:13.5px;color:var(--fg-dim)}

/* пакети */
.packs3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:900px){.packs3{grid-template-columns:1fr}}
.pack3{border:1px solid var(--border);border-radius:14px;padding:26px 24px;background:var(--bg-panel)}
.pack3.on{border-color:var(--accent);background:#2c2f28}
.pack3 h3{font-size:12px;letter-spacing:.2em;color:var(--accent-2);margin-bottom:14px}
.p3-price{font-size:27px;font-weight:600;line-height:1.15;letter-spacing:-.01em}
.p3-sub{font-size:11px;color:var(--fg-muted);margin:4px 0 16px}
.pack3 ul{list-style:none}
.pack3 li{font-size:13.5px;color:var(--fg-dim);padding:7px 0 7px 22px;position:relative;border-top:1px solid var(--border)}
.pack3 li::before{content:"-";position:absolute;left:2px;color:var(--accent)}
.packs-note{max-width:680px;margin:28px auto 0;text-align:center;color:var(--fg-dim);font-size:14.5px}
.packs-note strong{color:var(--accent-2)}

/* FAQ */
.faq{display:flex;flex-direction:column;gap:10px}
.faq-item{border:1px solid var(--border);border-radius:11px;background:var(--bg-panel);overflow:hidden}
.faq-item summary{
  cursor:pointer;list-style:none;padding:16px 20px;font-weight:500;font-size:15px;
  display:flex;justify-content:space-between;align-items:center;user-select:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--accent);font-size:19px;transition:transform .2s}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{padding:0 20px 17px;color:var(--fg-dim);font-size:14px}

/* CTA / футер */
.section-cta{padding:130px 0 120px;background:var(--bg-panel);border-top:1px solid var(--border)}
.section-cta h2{margin-bottom:16px}
.cta-sub{color:var(--fg-dim);margin-bottom:30px}
.foot{border-top:1px solid var(--border);padding:26px 0}
.foot-in{display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.foot-in .tiny:last-child{margin-left:auto}
.foot-link{background:none;border:none;cursor:pointer;font:inherit;font-size:13px;
  color:var(--fg-dim);padding:0;text-decoration:underline;text-underline-offset:3px}
.foot-link:hover{color:var(--fg)}

/* ── Попап контактної форми ── */
.modal-backdrop{position:fixed;inset:0;z-index:90;background:rgba(20,19,18,.72);
  display:flex;align-items:center;justify-content:center;padding:20px}
.modal{position:relative;width:100%;max-width:430px;background:var(--bg-elevated);
  border:1px solid var(--border-strong);border-radius:14px;padding:26px 26px 24px;
  box-shadow:0 30px 80px -20px rgba(0,0,0,.85)}
.modal h3{font-size:20px;margin-bottom:6px}
.modal-close{position:absolute;top:10px;right:12px;background:none;border:none;
  cursor:pointer;font-family:var(--font-ui);color:var(--fg-muted);font-size:22px;line-height:1;padding:6px}
.modal-close:hover{color:var(--fg)}
.modal label{display:block;font-size:12.5px;color:var(--fg-dim);margin:12px 0 5px}
.modal .req{color:var(--accent)}
.modal input,.modal textarea{width:100%;font:inherit;font-size:14px;color:var(--fg);
  background:var(--bg);border:1px solid var(--border-strong);border-radius:8px;
  padding:10px 12px;outline:none;resize:none}
.modal input:focus,.modal textarea:focus{border-color:var(--accent)}
.modal .btn-wide{width:100%;justify-content:center;margin-top:16px}
#cfErr{color:var(--red, #e08093);margin-top:10px}
.btn[disabled]{opacity:.5;cursor:wait}

@media (prefers-reduced-motion: reduce){
  .js [data-reveal]{opacity:1;transform:none}
  .caret,.hc-status .dot{animation:none}
  html{scroll-behavior:auto}
}